Laminated-paper machine



May 8, 1928. 1,669,011

l. A. NEWCOMER LAMINATED PAPER MACHINE Filed NOV. 29. i926 -5Sheets-Sheet 1 May 8, 1928. 1,669,011

l. A. NEWCOMER LAMINATED PAPER MACHINE Filed Nov- 29, 1926 3Sheets-Sheet 2 l May8,1928. 1,669,011 l. A. NEWCOMER LAMINATED PAPERMACHINE y Filed NO`V. 29. 1926 5 Sheets-Sheet 5 l inventa j @Qa/MIZ Mwwm32,11%@ Y` Patented May 8, 1928.

UNITED STATES PArEN'rv OFFICE.

IRVING' A. NEWCOMER, OF MONROE, MICHIGAN, ASSIGNOR TO THE CONSOLIDATED:PAPER COMPANY, OF MONROE, MICHIGAN, A CORPORATION OF MICHIGAN.

LAMINATED-PAPER MACHINE.

Application filed November 29, 1926. Serial No.` 151,499.

the wet state on a making roll. More p'articularly, the invention hasfor its object to produce such a machine for making waterproof laminatedpaper direct from pulp of different kinds and forming two or morelaminations of-diiferent kinds of ibre paper while in the wet state on amaking roll.

The invention provides means whereby the pulp is formed in layers on thefelt belt and then delivered therefrom to the pressure roll,

i5 or cylinder.

The invention may be contained in paper making machines that vary in thedetails of their construction and to illustrate a practical applicationof my invention-I have selected a construction containing the inventionand shall describe it hereinafter. The structure selected is shown inthe accompanying drawings.

Fig. 1 illustrates a side view of a machine for integrating twolayers'of paper. Fig.

2 illustrates a top View'of the machine shown in lig. 1. Fig. 3illustrates a side view for integrating three layers of paper. "r

lin the example of construction selected,

.3o the invention' is embodied in a paperymachine of the well knowntype. 4It has the frame l, the super-structure 2v and a pluralityoi'lpulp vats, such as, the pulp vats l3 and 4 in the form shown inFig.' 1 and 5,

Gand 7 in the form shown in Fig., 3. rlhe frame 1 has the usual makingroll 8 of hard maple that issubjected to pressure by the hand screws 9so as to press against the pulp on the felt' as its passes Iover thepress roll 40 10 which enables the removal of the pulp from the felt. l

rIhe felt belt 1 5 passes over the pulp de-v livering cylinders 16 and17 having wire mesh for gathering pulp from the vats 3 and 4. It isdriven by rotation of the makingproll 8 and the press roll 10. It passesover suitable guide and stretch rolls 18 and over the cylinders 16 and17 where it gathers the pulp. It is'pressed against the cylinders by theload on the rolls 19 and 20 at a point beyond the vertical center lirieo f the cylinders. The load may be adjusted .and the rolls 19 and 2O maybe raised by ralsing the arms 21 and 22. Cables 23 and 24 are connectedto the ends of the arms and to a suitable drum or shaft 1l.` They passover suitf able guide blocks' 12. When the drum is rotated the arms Yareraised and the felt is slackened which gives opportunity'toclean out,change pulpetc. The drum may be operated by a suitable handwheel 25,sprocket belt 26, and gears 27.

Between the rolls 19 and 20 a portion of the water is removed from thepulp by drainage that is taken up by the felt to enlayer of pulp fromthe cylinder 20. Preferably the felt is inclined upward between therolls 19 and 20 at a slight angle such as between 7 degrees and 20degrees. This will depend on the character of the pulp taken from thevat 3. In the construction shown the felt is inclined to the horizontalabout l() degrees which will cause a suitable amount of water to drainfrom the first n able the vpulp andvfelt take up 'an additional layer ofpulp to enable it, with the felt and the pressure of the roll 20, totake off the second layer of pulp. The pulp is then carried tothe makingroller and pressed and gathered and removed in one or more double layersin the manner well known in the art.

In the form of construction shown in Fig. 3, the felt gathers pulp fromthe cylinders 28, 29 and 30 located in the pulp vats 5, G and 7. rlhefelt 31 is inclined upwards at a slight angle between the succeedingcylinders so as to remove a required amount of water from the pulppreviously gathered. Depending upon the character and thiclmess of thepulp, the felt may be given a slightly greater inclination between therolls 29 and 30 than exists between the rolls 28 and 29, if

desired. rlhe structure has rthe additional' pivoted arm 34 and cable 32for supporting and manipulating the roll 33.

The machine is particularly designed for combining together a paperknown as asphaltic paper that contains a relativelylarge percentage ofasphaltum and a long fibre with -a paper that is known in the trade asbuck fibre. The asphaltic pulp is placed v deorm when dried because ofthe interbondn gathers the buck fibre pulp from the cylinder 17. Owingto the inclination o the felt belt and the layer of asphaltic puipbetween the two gathering cylinders 16 and 17, water drains back untilthe amount in the pulp that is on the belt, as it gathers the buckfibre, has been reduced to sueh an extent that the buck bre\pulp/will betaken up and carried to the makng roll 8. This back wash or movement ofthe water, as itldrains from the asphaltic pulp, lays the long fibre orthe asphaltic pulp along `the under surface so that it will interminglewith the exceedingly short fibre of the buck fibre pulp and when the twolayers are taken off from making roll 8 they will be bonded to ther bythe long fibre as well as by the a esive characteristics of the twoulps. When a board that is formed of ayers of buck ibre only is dried itwarps and distorts owing to its shortness of bre -while on the otherbuck fibre and asphaltic paper, it will not -pair of pulg aeeaoii gproduced by the long fibres of the asphaltic pulp.

1.` n a paper marking machine, a felt belt, guide rolls and making andpressure rolls, a

gathering rolls, one for gathering short bre paper pulp for gathering anasphaltum pulp containing long fibres, the felt inclined at an anglebetween 5 degrees and 20 degrees to the horizontal between gatheringrolls anddirected to the press and making roll.' l

2. In a paper making machine, guide rolls 'and makin a air of pulp gatheing rolls, one gat ering short fibre. paper pulp and the other forgathering an as haltum pulp containing long fibres, the elt inclined atan angle of ten deg'r a felt but, and lpressure rolls,

ees

In testimony whereof I have hereunto signedmy name to thisspecification. neme a Neweoima.

for

and the other to the horizontal between gathering rolls and directed tothe press and making roll. hand when a board is formed of a plurality ofpairs of layers of

